/kwo drup"lit, -drooh"plit, kwod"roo plit/ , n.
1. any group or combination of four.
2. quadruplets , four children or offspring born of one pregnancy.
3. one of four such children or offspring.
4. Music. a group of four notes of equal value performed in the time normally taken for three.
[ 1780-90; QUADRUPLE + -ET (modeled on triplet ) ]